Nikon D4 - Manual (Page 138)

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k
Continuous Release Modes
In continuous low speed mode, the camera records photographs
at the frame rate selected for Custom Setting d2 (Shooting speed,
0 318) > Continuous low-speed. In continuous high speed
mode, the maximum frame rate can be chosen from 10 and 11 fps
using Custom Setting d2 (Shooting speed,
0 318) > Continuous
high-speed (note that at 11 fps, some of the second and
subsequent shots in each burst may not be in focus and exposure
may not accurately track poorly lit subjects).
The foregoing frame rates assume continuous-servo AF, manual or
shutter-priority auto exposure, a shutter speed of
1 /
250
s or faster,
and other settings at default values. Frame rates may drop at
extremely small apertures (high f-numbers) or slow shutter
speeds, when vibration reduction (available with VR lenses) or
auto ISO sensitivity control (
0 119) is on, or when the battery is
low.